{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0x92ab770c4f319bb0621fb51c45520e09a0ca2b88e37427d5c52a4842760009aa",
    "signature": "0x294f20461779bc689bb9d60483b582bb5aa756fded1ba8f0ab705eb78fb8f7cd3b5793df304fd457eeba4505507337a1770d2160990de47c0ba5d7c95ffed4b01b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}