{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161353174",
    "entityType": "User",
    "nonce": "0x38e6977c5e8ca62cbebdb3a3ee9ea73596797dae796b5c7690d26e739003c69f",
    "signature": "0x1d5efb667b901131ce46657e577e3e18e7661bdb83efdb5e88f26671765812433e98fc027f5f8e6678b70110081a6084ab58d6401f4185db6a41aa9aec3032961c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}