{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x69aa45bcdc54983d3df6feb52f3ce0e0dd28e54913a993338b1daac593df45b4",
    "signature": "0x7374cabf84217b1d4ebedcbcaab8e5036ad8d5dca46615c4a89a7b477662ce5204c1eb9c2c82097cd7772b2f548302d777e440e0f7a1c4c3d97f246652ac86b61b",
    "signer": "0x3779c0ccEAcffc194b6C8613B9e3c7cAF9E94399",
    "userId": "515097345"
  }
}