{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "290065",
    "entityType": "User",
    "nonce": "0x532931c65109521184901a4cafe375284c7a1498f15faa3383873ef81177ecf1",
    "signature": "0x0e33ec4f16ff655055201dc18a63192cff9a62a97fc0597118d31cf133120a25353910e0c8393261e8bbc419a755f769091f90c20160dedc34edf64eff85d5031c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}