{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1495091",
    "entityType": "User",
    "nonce": "0x7a5b0983c046baa792d8ecb5bc8fb5d4b0e92074ec01bcfefe7af838fb058805",
    "signature": "0xb6cca5ba5a3e7b5633becd7fc5c26cd2d587edf4d21de6f7b32f099278f9afd0421e375c4ad53cba980bf04411d87725c7070fd3c92eab447268c2d74c0349161c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}