{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe7c6281d86aa64395205aa08d26546cac6956e18389c026e6f0148557403eb4a",
    "signature": "0xd1391f87fa0a2d3d43281e3ccf231276f90ca2fcb71bad962d04610ecedbc2e378ccc50a864b2eff30317d5b955a1e03392a7d8ca2ad2510c5faae50ec9407971b",
    "signer": "0xcaA9319EdC20e78C9B29234C2C99a33bdB2C0043",
    "userId": "96425053"
  }
}