{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x16b8a404090ec9478c29108af0b9ac2b685190eddfa1e58e6f5627fc5726fd7e",
    "signature": "0xe0095865d40e6e6cb236720b7ea86b55c1db40c6b7bad8ae6f9ba1837c21b59a078119c3a1c77dc9ee0085c9113fbf75a27f3c8ce1ff6081366bb9690710c21b1c",
    "signer": "0x1EDDBc797b04b7864F81470484a72a09a03CA990",
    "userId": "88763753"
  }
}