{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99786",
    "entityType": "User",
    "nonce": "0xff7f37decd68e3b8a1e239349797bf4542bd6531c83910238ef548f479fa303a",
    "signature": "0xbe355ca717fbf9fec53a2df42b4c50543ff43a00e650f251ef11cd1b2d6b925679606e70aa8523123e8a054b156cb4163fc0e460cb9aa1e2b6af78cef6ad5eb01c",
    "signer": "0x351190d422DdfF89f0f2C837782e16b5a5b6b3f2",
    "userId": "707981838"
  }
}