{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc747378f91b3c4ca84d360aa71cf4a7d7e5a4d95a338910120c65fcb40bc7507",
    "signature": "0x46b974d992453ca5b9144a3d16d99f2b11dfedb1af6b401f341fc2ff1bbda0037a73825ad746f40bbe30c245c1a7c9cccb33cf429d60fc3c5f6c98ffa50223321c",
    "signer": "0xfbf237a9ede64d2D31C8AcAa0b15633A26555989",
    "userId": "882968362"
  }
}