{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "481565171",
    "entityType": "User",
    "nonce": "0x13595985a2f6cc3cb1a0ab757f99b560760530630381183519011b8f38623793",
    "signature": "0xf4d0cfcbac291494c4e40ed19a051bc7269cd3eaad3c59c664e38f17900a9e77750a87284621720cf3c303736618750853108e6eb36671815733f6c430b0b9011c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}