{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x734739d1127dc4729bf6b9634cfe519dbf7a80a3e31fe39bbbaa2618d59980f6",
    "signature": "0x576e6e3bd4fd636b98d82af66d78b94ccd89401dd03a68b860cb5a107496bad2420abefe01ce4376ebd5cdee2c8323894727c4e8eea80a80b7dfc36b810e19d81b",
    "signer": "0x5FA2B167c916071160F5c8A5e82d24bA7268988d",
    "userId": "860340972"
  }
}