{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "970214396",
    "entityType": "User",
    "nonce": "0x0c12755fc25ca7fd8243a997819969a34b81a243ef206ca136da57655b9d93bf",
    "signature": "0x3b3ba5da75a3bcc9b978ed1935607a3aabd3a89cb1f043de0e7d0b21aff929417f170bf274ff2c77edf891588ac66957d5da7f7fd1d485b850c52841b99d64a61b",
    "signer": "0x30B64FB434746b085aA47C69D4d768D621197070",
    "userId": "144074205"
  }
}