{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6220",
    "entityType": "User",
    "nonce": "0xd506ee2db4e0943818511a0f8f648841bfdf7b0cb34a1687b7bcec22b3723b8f",
    "signature": "0xded13ac0939c5d9a8c3c7c9b6c37c2cb3743490816dfb5952b71b51cb26f323a2e07abf1a0ae2a09d1fce0f772ff443d1bbf79856273a7f6791a0337ba4656501c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}