{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcd98bfbd85a37030fc8af7c16bcb3bcbfdf242e60b6cb604b28c1ab710c4fa48",
    "signature": "0xc988d6b09a3d7b7616428b96112e446c5943f8fc505b82f2c9c4b28e7369fa32456e370fa896286701a4cb83ed69355fd6e54ae5317ecc1fdd17b9fe3b1ef5ca1b",
    "signer": "0x2d00665Ec1AC27508FC4aEF572E680bc2091047b",
    "userId": "900342656"
  }
}