{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1497323",
    "entityType": "User",
    "nonce": "0xdcd249eb32547b2f97bbc0b17b6bcf74920c6c884925722bad7035b685e3defc",
    "signature": "0x4d3f96bffa46fb7597e14f02e03985f0e00091401d963598cb7bed04e0d1fec93d5183dd3435aa3e8803945777579817af8b557d41f96ed572b645b8c20e54811b",
    "signer": "0xCd69C2Cb50a21531a08Db7A8333c51532ea010f0",
    "userId": "837274016"
  }
}