{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3b06fa9900f9cea33b83196855420517abb7e51f85b073004b00b633d6adc5ec",
    "signature": "0x39d7e3f5819e69b13d35b076639bacde4939c9919474580f3d4ce06f4690c50067cb60c6642f58807fbb6cdd35c377206cd0a2fc29c7b1e495409b9d14a67a6d1c",
    "signer": "0xce94e7Ee987Fd1e98e49175554ec9aBa4969dd06",
    "userId": "874488069"
  }
}