{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984215347",
    "entityType": "User",
    "nonce": "0x7b7955a7c55e14bab64975b81a0a7216012e7944a28e456bff6ed8132df96eb5",
    "signature": "0x93fadd4d32a5cb23edd42582c62ff520c5bdf13f6069dd2f6b5415c0e210de5f657afa4e2c925f3dd21703ddf1423b05c2a3a17ff2c2187f82c118b19392a3991b",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}