{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x79287b91883354a526c3b07247b0acc91aadf71abf21a6a2c83ca16fa30ff700",
    "signature": "0x2feaf2c4e66bc37c1ebc479ae6f00d29b2ce4cc25ad95ca8692d2c867eeeb6380e2668c75f2b70742adce71ea04b0d6ad64c6242bfc761d73419b04e18963dac1b",
    "signer": "0xCeb748bFCd7bA72fF96E9DBa8A6749798F934147",
    "userId": "109444462"
  }
}