{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x29516848a5136649c5282d7fa46e14ac70d0a6decc029464b863b736817eb98b",
    "signature": "0xd7cb2ebe712cfacd0c8902c64718e961484d5bd5b72207c24dc5b9542aac53d427765e46393bd94acafdf3e1e764c349907e7213c9167c98a711dbe42620dc531b",
    "signer": "0xACc2fF4480d43bB7560718464314ec17310Cb8C1",
    "userId": "682142554"
  }
}