{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfeae0c16d775701bc115b3f3bc18738ee76b4371c44baeca30c779dd511405d9",
    "signature": "0xf8b5ec81122db358dce3230e950048c6ae863c02eebc59a4aa601ef34d9f46dd46715d7a9a16812b7dd8435a07085bd2786d2f9b6ea7ab2e734e7ae62d7924701b",
    "signer": "0x39452a9B2dbaB3c004961649B8087D6AC16B5bF2",
    "userId": "192456931"
  }
}