{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357273",
    "entityType": "User",
    "nonce": "0xd867dfca5df3623e95c650d2917b9df0e6ef2c334ada0109d566d55202f37b32",
    "signature": "0xa378166abb172f873bac4e466f03175e11cee4dbaa2d6aed2cda91d9ac7856a0704bea265f0159caa025ebd689989d20834c6a263fb4005a545620097b61edb41b",
    "signer": "0x440467be448B39e4c0458f2110526c0DFaBfD76f",
    "userId": "129851637"
  }
}