{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaa32458849deca2489b77f55b1c1b0af6e5b8df6bc1741d29c02a34d75344854",
    "signature": "0x26ffdd4ce2f07b477a6c6d4ce7cd1563429b2a595c2b8569e69e308356a511e377e25edf0186731b4196197113dc554fc5c7319566aea3d4fe5f55df30411b441b",
    "signer": "0xC2CF6f49853F6F1108E64Ec81CA00F940D5B819D",
    "userId": "354011310"
  }
}