{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273387437",
    "entityType": "User",
    "nonce": "0x7a79ffa8badb01194f14f2bbd638230997bc6d9c59e6c3017d84928b02d5bec0",
    "signature": "0xa14006466b63b8ef23f27399eb479dac96858cf4e59108bffccb8a308d2cc048081fbb2ed6b8517ff106373104b3c29c22d4e47f72e9491cff40015aa6cad26b1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}