{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "88437",
    "entityType": "User",
    "nonce": "0xb76c459a01c95ffb8abc089ed797297fafda9753c3c2d6e4b8325862eff02eb8",
    "signature": "0x842546fb5a8f772e42ff8555eb90555842ff1b21524f4f0ab974a0316f18d7b5395ba39e48446e15bea9fb4b44f9519f59d0dd932e17ed4b6b7ecd69b64f581f1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}