{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310378",
    "entityType": "User",
    "nonce": "0x010c3f621e64810ff2ac1b93ccafc0c7a77b17c856b84313198db19f26e8d516",
    "signature": "0x567d8ae631ead8091f31c6312097b00d4560cdfe318bac3d7710612bc880b9083b7e6596ca1b5f4df7a612b361cdb6e144b58745640753607345c3c825dd331f1b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}