{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937107046",
    "entityType": "User",
    "nonce": "0xe78b3e0ac92f0e599b00b4b3027c203cfdd2e295bd76a351fc9e6f031c45a0a9",
    "signature": "0x21141740f58e162748719dbefb8ec923a2873774034ebb65ed771e6aa0231ba7120c87223e32f583f728c4287bb2160a41d652d4ef6ccf61e4097f23571172d11c",
    "signer": "0x19EDB4c1a8740c323f6e57B80F3422C01875289e",
    "userId": "390804"
  }
}