{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "744340932",
    "entityType": "User",
    "nonce": "0xa0c60d6874460c820989f2223465a76b5aa7217e639fe24a0d4d510004c02a77",
    "signature": "0x320ecd792bfd7e6632cc54e1e36d136810fbdabcc96d6e7aae81023e0bbd41b25e92f73ab70f05f2abf4953d0f963c9f67c70d85c448209d01717d48aa4b4b6d1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}