{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "131390",
    "entityType": "User",
    "nonce": "0xd55446fee1cd8f8378a829e7eb87726b2e8c17f98d191ea96971985b56def557",
    "signature": "0xc8ff363f999b3ad5fc2fce7e254a1b71d99c261fbd916868138e85ce8a07f8b11e4ce727996038be88657c4ea217940754f15b35aac139381b354a41c3d305771b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}