{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4f622edd4d888a971c19e6edf4e132fd5b6d1ec6838ea1d660fc153399c766a8",
    "signature": "0x0ea98700abef5f0a0e6a83c051ed037fad7bf38ad69452ea2ec1d08cce19f97b1fd396d7a5e43e85b9822f7e02c413bf97e8c45338baf47df34cf80db67798231b",
    "signer": "0xbb3b8C270080b0DAE42411345FCDc6a00369e247",
    "userId": "690093689"
  }
}