{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3904651a0400061208f716fe083619ecaa17a721679b27fca5d57c891d2eb6f7",
    "signature": "0xd9f090e09156f3b651e9f4070e5da7aa1d5f28edd8760ece953a536e5b110376196bf3c4e84e45046b93c932922d94679e98edb5ae6fc58662ebff8e548788601c",
    "signer": "0xE36F4D81407594D330051f9eC8FDE83c6B8364f7",
    "userId": "842650858"
  }
}