{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa79ecf066a33f67103c9d7266adb84c28411a68e99f9a1982c844203e97768ae",
    "signature": "0x19ba93a74e9a6b4cb651c841653d99519fc3a070cf6914750d9a4a1af9a9e19f4ed6914de3b0ddb789c581ed8ce2e394956e1e47b1855b4707c6280f5e22ee341b",
    "signer": "0x85716762Eec590d7cED7237cd3177cc25FA3f95d",
    "userId": "897051051"
  }
}