{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404905765",
    "entityType": "User",
    "nonce": "0xc1071bf0f26a3cec59ec12e0f48642b131acfe084f615ebbdd1e69423fc632de",
    "signature": "0x0ec5e58da96f122f2486ac85b586938a7fb6ed98c2ca62c9fb07db42060ab0b840ac28cbe4a0fd4f96ebe1d3c46db3430898e762320a9eea83f43b6bbaaca9fa1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}