{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "965042984",
    "entityType": "User",
    "nonce": "0x7a8c0af771cebaf98af94cc75932cfc7cb4136bed95a292309dee691346385a0",
    "signature": "0x90e6ac225589dd80ea1e27488d33915bcdc4f9a413afe3ef31f78450b0237baf79630be70a29ad3e9812f243220c20d189006cb247ffef4fc3e07373c75d217b1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}