{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29723",
    "entityType": "User",
    "nonce": "0x7cc9065e518cc1b6746a18500af8a6d7260c793675730cc0d82286b5552d3fa6",
    "signature": "0x0c9ef84a01717c70d23dda60e10c6b0a7e38c828e03c03b2a4c8f1570ee3e9fb2c556f3170ebdc5988bab5e9230a2b584c3e6225cfa40e049290cb7654c728401c",
    "signer": "0x39788E2D020D54760872178Cea0d5AF12732F02D",
    "userId": "720903941"
  }
}