{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "970214396",
    "entityType": "User",
    "nonce": "0xa8722112ff1ab6929e82d385ec15db9412145a1f520cec3ded9e49236b070861",
    "signature": "0xbbeb78c91d7026945dc7d430013f65a2db8e3939bdd90422294dccd6d2d2f5b71dcabfc42bf1df6e643bd7bbc44f6d34eb2087bae2a667420d7a8ff641023a241c",
    "signer": "0x9A16d974E945A1b74E5064EB00C2731Ba1dB8fF7",
    "userId": "700389917"
  }
}