{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0xc74e880a81c68a40aebd0b857cf761b91b91d28a9f6c645270761d982511b1b3",
    "signature": "0x3251883af802ee7a01210c281bf4bd258615e66c32d7d405b93a80d3a0fb46634e07068767f968d0a7bc36e9c521709288858295c4be41f9fae20ff3054b34a31c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}