{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937233830",
    "entityType": "User",
    "nonce": "0x6476e10be843ae66f3bcf7b71c6166d7a688f0a036c9468f9d10c41f3dd6ee06",
    "signature": "0x84a911489fe9e668d85bf935020775990787b6e611bc4813a34843d284488152414233c7c9de04ba36d0f08e46a682d2b91c60e0328647f8af84586da618bfa31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}