{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61223",
    "entityType": "User",
    "nonce": "0x57281e8fae8f37ac8f5a29f2f7bf2b492942c1ddc4cadb5343e0e33cac0d5df8",
    "signature": "0x4a58071a60c2ee74990fd62ddac882e2cecb62d12d42026554cc26cdafdf002c64441eabf4ebe2c48face575b4ea1ae85bf0c5331a2202bc315883ccd7a4a3151c",
    "signer": "0x3CE226b3CA677B312E9396cc48d4008c70545091",
    "userId": "550328673"
  }
}