{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x009f6ed2cf4bf028c4904a057b819be184eb076da9ae8ab7025632551b23b244",
    "signature": "0xbbb7fc6c3b4a1f93a3bba9986e3136aaaad24f5e3a0bd8d48fc8f5be27cae21653f4dc90c5a1cc7839bcce580cafc12a84cf13db82bf876e7d94526f312b10dd1b",
    "signer": "0xe5B1A1fAB22CdC556B12796875677bF88C3d346b",
    "userId": "344251308"
  }
}